Answer:
Let call the angle X
Its complement will be 90-x
Its supplement will be 180-x
(180-x)+15 = 4(90-x)
180-x+15 = 360-4x
4x-x = 360-180-15
3x = 165
x = 55
Prove
The complement of 55 is 35
And the supplement of 55 is 125
Now we must see if the relation stated holds
125+15 = 4(35)
125+15 = 140 The measure of the supplement of an angle is 15 degrees less than four times the measure of the complement.
140 = 140
Therefore the solution of the problem is given by an angle of 55 degrees.
Answer:
A rational number is a number that can be written as a fraction, is a whole number, is a decimal that stops like 3.35, or is a repeating decimal
Answer:
down ⬇⬇⬇
Step-by-step explanation:
5. its all of them so just write A, B, C, D, E, F, G
6. (equilateral) triangle, right triangle, diamond (?), parallelogram
7. C and E; A and B
8. not so sure about this one but i think its regular
9. its not a polygon because polygons have straight sides, and this figure does not.
10. the only polygon is C
pay attention in school, it'll help in the long run. even if it sounds boring, it will come in handy one day!!
hope this helped <33333
Answer:
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Answer:
x=4
y=6
Step-by-step explanation:
![2.5y + 3x = 27 \\ + (5x - 2.5y = 5) \\ \\ 8x = 32 \\ x = 4 \\ \\ 2.5y + 3x = 27 \\ 2.5y + 3(4) = 27 \\ 2.5y + 12 = 27 \\ 2.5y = 15 \\ y = 6](https://tex.z-dn.net/?f=2.5y%20%2B%203x%20%3D%2027%20%5C%5C%20%20%2B%20%285x%20-%202.5y%20%3D%205%29%20%5C%5C%20%20%5C%5C%208x%20%3D%2032%20%5C%5C%20x%20%3D%204%20%5C%5C%20%20%5C%5C%202.5y%20%2B%203x%20%3D%2027%20%5C%5C%202.5y%20%2B%203%284%29%20%3D%2027%20%5C%5C%202.5y%20%2B%2012%20%3D%2027%20%5C%5C%202.5y%20%3D%2015%20%5C%5C%20y%20%3D%206)